Breakdown of jikokuhyou o mitara, sono densha wa juppungo ni hasshasuru to wakatta.
Questions & Answers about jikokuhyou o mitara, sono densha wa juppungo ni hasshasuru to wakatta.
In this sentence, 見たら is best understood as when I looked or after looking, not a strong hypothetical if.
- 見る = to look
- 見た = looked
- 見たら = when/after I looked; if I look/looked
The -たら form can express a condition, but it is also very commonly used for something discovered after doing an action.
So:
- 時刻表を見たら、…分かった = When I looked at the timetable, I found out ...
This pattern is very natural when the second part is a result, discovery, or new realization.
Here, と marks the content of what was understood or found out. It works a lot like that in English.
- その電車は十分後に発車する = that train leaves in ten minutes
- …と分かった = I understood/found out that ...
So the whole part:
- その電車は十分後に発車すると分かった = I found out that the train would depart in ten minutes
This と is often called the quotative or complement particle. It is used not only for literal quotes, but also for thoughts, knowledge, reports, and realizations.
